Immersed in uncertainty: hyponatremia due to SIADH of undetermined etiology

Authors

  • Alejandro Sáenz de Urturi-Rodríguez Internal Medicine Department, Rey Juan Carlos University Hospital, Móstoles, Madrid, Spain https://orcid.org/0009-0005-3402-4355
  • Ángel Asenjo-Mota Internal Medicine Department, Rey Juan Carlos University Hospital, Móstoles, Madrid, Spain https://orcid.org/0000-0001-9770-6146

DOI:

https://doi.org/10.32818/reccmi.a9s1a2

Keywords:

syndrome of inappropriate antidiuretic hormone secretion (SIADH) , hyponatremia, urea, vasopressin antagonist , differential diagnosis

Abstract

Syndrome of inappropriate antidiuretic hormone secretion (SIADH) is one of the main causes of hyponatremia in both hospitalized and ambulatory patients. The causes of SIADH can be multiple, including neoplastic etiology, central nervous system pathology, pharmacological factors, chronic infections such as HIV, intense pain, or even hereditary forms. We present the case of a 66-year-old female patient who presented to the Emergency Department with acute abdominal pain, where moderate hyponatremia was detected as the only relevant finding. Based on this finding, a broad differential diagnosis was considered, and various therapeutic alternatives were explored, posing a significant clinical challenge.

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References

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Published

2024-11-30

How to Cite

1.
Sáenz de Urturi-Rodríguez A, Asenjo-Mota Ángel. Immersed in uncertainty: hyponatremia due to SIADH of undetermined etiology. Rev Esp Casos Clin Med Intern [Internet]. 2024 Nov. 30 [cited 2024 Dec. 27];9(Supl. 1):3-5. Available from: https://www.reccmi.com/RECCMI/article/view/1054